<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="app">
        <h1>简单计算器</h1>
        <div>
            <span>数值A:</span>
            <span>
            <input type="text" v-model='a'>
          </span>
        </div>
        <div>
            <span>数值B:</span>
            <span>
            <input type="text" v-model='b'>
          </span>
        </div>
        <div>
            <button v-on:click='handle'>计算</button>
        </div>
        <div>
            <span>计算结果:</span>
            <span v-text='result'></span>
        </div>
        <script src="js/vue.js"></script>
        <script>
            var vm = new Vue({
                el: '#app',
                data: {
                    a: '',
                    b: '',
                    result: ''
                },
                methods: {
                    handle: function() {
                        this.result = parseInt(this.a) + parseInt(this.b);
                    }
                }
            })
        </script>
</body>

</html>